Vulnerability Details CVE-2018-3903
On Samsung SmartThings Hub STH-ETH-250 devices with firmware version 0.20.17, the video-core process incorrectly extracts fields from a user-controlled JSON payload, leading to a buffer overflow on the stack. An attacker can send an HTTP request to trigger this vulnerability. The memcpy call overflows the destination buffer, which has a size of 512 bytes. An attacker can send an arbitrarily long "url" value in order to overwrite the saved-PC with 0x42424242.
Exploit prediction scoring system (EPSS) score
EPSS Score 0.004
EPSS Ranking 59.3%
CVSS Severity
CVSS v3 Score 9.9
CVSS v2 Score 9.0
References
Products affected by CVE-2018-3903
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cpe:2.3:h:samsung:sth-eth-250:-
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cpe:2.3:o:samsung:sth-eth-250_firmware:0.20.17